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larisa86 [58]
3 years ago
10

"what percentage of radiation exposure is a result of man made sources"

Biology
1 answer:
irinina [24]3 years ago
6 0

Globally, man made radiation takes up 21 percent of all radiation.

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You mix activated yeast with different carbohydrates and measure the CO2 production over a time span of 10 minutes for each type
LenaWriter [7]

Answer:

quantitative analysis

Explanation:

Qualitative analysis refers to quality whereas quatitative analysis refers to the amount or quantity. In this experiment, we see how much carbondioxide gas is produced after the use of different carbohydrates given to the yeast. In this experiment, we want to know the concentration of the product in the reaction not the quality so we can say that this experiment shows quantitative analysis as compared to qualitative analysis.

3 0
3 years ago
How long would it take
Valentin [98]
Solution:
4.2 x 10^6 bp/10^3 bp/seconds         = 4.2 + 103 s which is 4200 seconds and equivalents to 70 minutes

In addition, assuming a pause of 2 seconds for re initiating after completing every okazaki fragment and assuming the okazaki fragments average 1000 nucleotide long.  
4.2 x 10^6 bp/10^3 bp                        = 4200 okazaki fragments                           4200 * 2 seconds                               = 8400 seconds which is 140 minutes or 2 hours 20 minutes of pauses alone.                                                                        

Therefore, overall time would be pauses plus the 70 minutes so total time of 210 minutes. Assuming that the replisome completely disassociates from the DNA after every okazaki fragment and must spend one-minute rebinding.

4200 okazaki fragments. 60 seconds rebinding time per fragment:                        4200 x 1 minute = 4200 minutes rebinding time plus 70 minutes for actual replication. 4200 minutes is 70 hours which is almost 3 days. 
3 0
3 years ago
Fossil evidence has been used to understand the movement of continental plates. The figure below shows where fossils of several
Fed [463]

Answer:

The modern organisms would have more muscular bodies

Explanation:

3 0
2 years ago
Explain why cells need to supercoil their dna molecules
Len [333]
DNA supercoiling means under or over winding of the DNA strand and basically is to become more condensed and more organized. Supercoiling is very important as it compacts the genetic code and as if that was not enough supercoiling also regulates and oversees the access the the genetic code.
5 0
3 years ago
Which of these will diffuse across a plasma membrane? select one:
Alina [70]
<span>d. neither of these will cross a plasma membrane.

Glucose cannot diffuse across a plasma membrane as it is polar. Since the question doesn't specify the type of diffusion, simple diffusion is assumed.

If you count facilitated diffusion, then A is the answer.</span>
7 0
3 years ago
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